Getting started

This chapter provides process flow information to configure Quality of Service (QoS) policies and provision services. It also provides an overview of the document organization and content, and describes the terminology used in this guide.

About this guide

Note:

Unless explicitly noted otherwise, this guide uses 7210 SAS-Dxp to refer to the 7210 SAS-Dxp 12p, 7210 SAS-Dxp 16p, and 7210 SAS-Dxp 24p platforms.

This guide describes the QoS functionality provided by the following 7210 SAS platforms, operating in one of the modes described in Supported modes of operation and configuration methods. If multiple modes of operation apply, they are explicitly noted in the topic.

  • 7210 SAS-K 2F1C2T

  • 7210 SAS-K 2F6C4T

  • 7210 SAS-K 3SFP+ 8C

See 7210 SAS modes of operation for information about the modes of operation supported by the 7210 SAS product family.

Note:

Unless explicitly noted otherwise, the phrase ‟Supported on all 7210 SAS platforms as described in this document” is used to indicate that the topic and CLI commands apply to the following 7210 SAS platforms operating implicitly in the specified modes. See Supported modes of operation and configuration methods for more information.

  • network mode of operation

    7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

  • access-uplink mode of operation

    7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C

Document structure and content

This guide uses the following structure to describe routing protocols and route policies content.

Note:

This guide generically covers Release 23.x.Rx content and may include some content that will be released in later maintenance loads. Refer to the 7210 SAS Software Release Notes 23.x.Rx, part number 3HE 19296 000x TQZZA, for information about features supported in each load of the Release 23.x.Rx software.

  • This guide is organized into functional chapters and provides concepts and descriptions of the implementation flow. Each chapter describes a software area and provides CLI syntax and command usage to configure parameters for the functional area.

  • Command outputs shown in this guide are examples only; actual displays may differ depending on supported functionality and user configuration.

  • Unless explicitly noted, the CLI commands and their configuration are similar for both network and access-uplink operating modes for features applicable to both modes of operation.

7210 SAS modes of operation

Unless explicitly noted, the phrases ‟mode of operation” and ‟operating mode” refer to the current operating mode of the 7210 SAS router. Each operating mode provides configuration access to a specific group of CLI commands.

Note:

Not all CLI commands are supported on all 7210 SAS platforms in all modes of operation. Users can only configure CLI commands supported by the current operating mode of the router. See the 7210 SAS Software Release Notes 23.x.Rx, part number 3HE 19296 000x TQZZA, and to the appropriate 7210 SAS software user guide for information about features and capabilities supported by a 7210 SAS platform when operating in a specific mode.

The following modes of operation are supported by the 7210 SAS product family.

  • access-uplink

    In the access-uplink operating mode, the 7210 SAS router uplinks to the network using Layer 2 Ethernet VLAN switching (without IP/MPLS).

    Platforms Supported: 7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C, and 7210 SAS-T

  • network

    In the network operating mode, the 7210 SAS router uses IP/MPLS uplinks to the network. The IP routing protocols and MPLS functionality are available; refer to the appropriate 7210 SAS software user guide for more information about supported features.

    Platforms Supported: 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C, 7210 SAS-Mxp, 7210 SAS-R6, 7210 SAS-R12, 7210 SAS-Sx/S 1/10GE, 7210 SAS-Sx 10/100GE, and 7210 SAS-T

  • satellite

    In the satellite operating mode, the 7210 SAS platform uses high-capacity uplinks (for example, 10GE ports on the 7210 SAS-Mxp and 100GE ports on the 7210 SAS-Sx 10/100GE) to connect to the 7750 SR host. The 7210 SAS router is managed by the 7750 SR host. There is no direct CLI access to the satellite node, and all services and protocols are configured on the host.

    See the 7210 SAS-Mxp, R6, R12, S, Sx, T Basic System Configuration Guide for boot options to configure the satellite mode of operation on the router. Refer to the 7750 SR software user guides for information about service and protocol provisioning, and operating the 7210 SAS router in satellite mode.

    Platforms Supported: 7210 SAS-Mxp, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE

  • standalone

    In the standalone operating mode, the 7210 SAS platform supports IP/MPLS uplinks. It is operated and managed independently.

    The functionality and features available on the standalone 7210 SAS platform are similar to the network operating mode. The standalone mode is primarily used to differentiate between a node being managed by the 7750 SR host (in the satellite operating mode), and a node managed independently (standalone operating mode).

    Platforms Supported: 7210 SAS-Mxp, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE

  • standalone-VC

    In the standalone-VC operating mode, a set of 7210 SAS devices are stacked to provide larger 1GE/10GE port density and control-plane redundancy. The stack of nodes is provisioned and managed as a single chassis and not as individual nodes.

    The functionality and features available on the 7210 SAS platform are similar to the network operating mode, with additional capabilities, such as control-plane redundancy with non-stop routing and non-stop services.

    Platforms Supported: 7210 SAS-Sx/S 1/10GE

For 7210 SAS platforms that support multiple explicit modes of operation (Supported modes of operation and configuration methods), the operating mode must be configured in the Boot Option File (BOF) to ensure the router boots up in the specified mode. For example, the 7210 SAS-T supports access-uplink and network modes of operation, and the 7210 SAS-Sx/S 1/10GE supports satellite, standalone, and standalone-VC mode of operations. In some cases, the 7210 SAS router operates in a specific mode implicitly, and explicit configuration is not required.

See the appropriate Basic System Configuration Guide for boot options and information about how to boot the 7210 SAS platform in a specific operating mode.

The following table lists the supported modes of operation and the configuration methods for the 7210 SAS platforms. Unless explicitly noted otherwise, the operating mode is supported on all variants of the specific 7210 SAS platform.

Table 1. Supported modes of operation and configuration methods

7210 SAS platform

Mode of operation and configuration method

Network

Access-uplink

Standalone

Standalone-VC

Satellite

7210 SAS-D

Implicit

Implicit

7210 SAS-Dxp

Implicit

Implicit

7210 SAS-K 2F1C2T

Implicit

Implicit

7210 SAS-K 2F6C4T 1

Port Mode Configuration 2

Port Mode Configuration2

Implicit

7210 SAS-K 3SFP+ 8C 1

Port Mode Configuration 2

Port Mode Configuration2

Implicit

7210 SAS-Mxp

Implicit 3

Explicit BOF Configuration

Explicit BOF Configuration

7210 SAS-R6 4

Implicit

Implicit

7210 SAS-R12 4

Implicit

Implicit

7210 SAS-Sx/S 1/10GE

Implicit 3

Explicit BOF Configuration

Explicit BOF Configuration

Explicit BOF Configuration

7210 SAS-Sx 10/100GE

Implicit 3

Explicit BOF Configuration

Explicit BOF Configuration

7210 SAS-T

Explicit BOF Configuration

Explicit BOF Configuration

Implicit

7210 SAS port modes

Unless explicitly noted, the phrase ‟port mode” refers to the current port configuration of the 7210 SAS node. The 7210 SAS platform supports the configuration of the following port modes.

  • access port mode

    Access ports are configured for customer-facing traffic if Service Access Points (SAPs) are required. The appropriate encapsulation type must be configured to distinguish the services on the port; services are configured on the port based on the encapsulation value.

    Access ports can be configured on all the 7210 SAS platforms.

  • access-uplink port mode

    Access-uplink ports provide native Ethernet connectivity in service provider transport or in an infrastructure network. With this option, the encap-type can be configured to only QinQ. Access-uplink SAPs, which are QinQ SAPs, can only be configured on an access-uplink port to allow the operator to differentiate multiple services being carried over a single uplink port.

    This is the default port mode of a 7210 SAS node in the access-uplink mode of operation.

  • network port mode

    Network ports are configured for network-facing traffic in the service provider transport or infrastructure network, and provide IP/MPLS uplinks.

    This is the default port mode of a 7210 SAS node in the network or standalone mode of operation.

  • hybrid port mode

    Hybrid ports are configured for access and network facing traffic, and allow a single port to operate in both access and network modes.

Port modes available for configuration on a 7210 SAS node are determined by the current mode of operation of the router.

Note:

The 7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C are unique; all port modes listed in Supported port modes by mode of operation are available for configuration on the router, regardless of the current mode of operation.

The following table lists the port mode configuration support per 7210 SAS mode of operation.

Table 2. Supported port modes by mode of operation

Mode of operation

Supported port mode

Access

Network

Hybrid

Access-uplink

Access-uplink

✓

✓

Network

✓ ✓ ✓

Satellite 5

Standalone

✓ ✓ ✓

Standalone-VC

✓ ✓ ✓

The following table lists the port mode configuration supported by the 7210 SAS product family. See the appropriate Interface Configuration Guide for more information about configuring the port modes for a specific platform.

Table 3. 7210 SAS platforms supporting port modes

Platform

Port mode

Access

Network

Hybrid

Access-uplink

7210 SAS-D

Yes

No

No

Yes

7210 SAS-Dxp

Yes

No

No

Yes

7210 SAS-K 2F1C2T

Yes

No

No

Yes

7210 SAS-K 2F6C4T

Yes

Yes

Yes

Yes

7210 SAS-K 3SFP+ 8C

Yes

Yes

Yes

Yes

7210 SAS-Mxp

Yes

Yes

Yes

No

7210 SAS-R6 IMM-b (IMMv2)

Yes

Yes

Yes

No

7210 SAS-R6 IMM-c 100GE (IMM-c 1QSFP28)

Yes

Yes

Yes

No

7210 SAS-R12 IMM-b

Yes

Yes

Yes

No

7210 SAS-R12 IMM-c 100GE (IMM-c 1QSFP28)

Yes

Yes

Yes

No

7210 SAS-Sx/S 1/10GE

Yes

Yes

Yes

No

7210 SAS-Sx 10/100GE

Yes

Yes

Yes

No

7210 SAS-T

Yes

Yes 6

Yes 7

Yes 8

7210 SAS QoS configuration process

The following table lists the tasks necessary to configure and apply QoS policies. The 7210 SAS-K 2F1C2T, K 2F6C4T, K 3SFP+ 8C Quality of Service Guide is presented in an overall logical configuration flow. Each section describes a software area and provides CLI syntax and command usage to configure parameters for a functional area.

Table 4. Configuration process

Area

Task

Chapter

Policy configuration

Configuring QoS Policies

  • DEI classification and marking

DEI-based classification and marking

  • egress rate

Port-level egress rate limiting

  • accounting mode

Frame-based accounting

  • DSCP, dot1p, and MPLS EXP Classification

DSCP, dot1p, and MPLS EXP classification policies

  • network

Network QoS policies

  • network queue

Network queue QoS policies

  • service ingress

Service ingress QoS policies

  • service egress

Service egress QoS policies

  • schedulers

Schedulers

  • slope policies

Slope QoS policies

  • remark policies

Remark policies

Reference

  • list of IEEE, IETF, and other proprietary entities

Standards and protocol support

Conventions

This section describes the general conventions used in this guide.

Precautionary and information messages

The following information symbols are used in the documentation.

DANGER: Danger warns that the described activity or situation may result in serious personal injury or death. An electric shock hazard could exist. Before you begin work on this equipment, be aware of hazards involving electrical circuitry, be familiar with networking environments, and implement accident prevention procedures.
WARNING: Warning indicates that the described activity or situation may, or will, cause equipment damage, serious performance problems, or loss of data.
Caution: Caution indicates that the described activity or situation may reduce your component or system performance.
Note: Note provides additional operational information.
Tip: Tip provides suggestions for use or best practices.

Options or substeps in procedures and sequential workflows

Options in a procedure or a sequential workflow are indicated by a bulleted list. In the following example, at step 1, the user must perform the described action. At step 2, the user must perform one of the listed options to complete the step.

Options in a procedure

  1. User must perform this step.
  2. This step offers three options. User must perform one option to complete this step:
    • This is one option.
    • This is another option.
    • This is yet another option.

Substeps in a procedure or a sequential workflow are indicated by letters. In the following example, at step 1, the user must perform the described action. At step 2, the user must perform two substeps (a. and b.) to complete the step.

Substeps in a procedure

  1. User must perform this step.
  2. User must perform all substeps to complete this action:
    1. This is one substep.
    2. This is another substep.
1 By default, the 7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C boot up in the network mode of operation. These platforms also allow the use of access-uplink port mode (without explicit BOF configuration), which provides the option to use Layer 2 uplinks instead of IP/MPLS uplinks to the network core, similar to the 7210 SAS-K 2F1C2T router.
2 See section7210 SAS port modes for information about port mode configuration
3 Implicitly operates in network mode when standalone mode of operation is configured
4 Supports MPLS uplinks only and implicitly operates in network mode
5 Port modes are configured on the 7750 SR host and managed by the host.
6 Network ports are supported only if the node is operating in network mode.
7 Hybrid ports are supported only if the node is operating in network mode.
8 Access-uplink ports are supported only if the node is operating in access-uplink mode.